Advertising display unit



FIG. 1 is a front view of an advertising display unit;

FIG. 2 is a right hand side view of the advertising display unit of FIG. 1;

FIG. 3 is a left hand side view of the advertising display unit of FIG. 1;

FIG. 4 is a top view of the advertising display unit of FIG. 1; and,

FIG. 5 is a bottom view of the advertising display unit of FIG. 1. 

The ornamental design for an advertising display unit, as shown and described herein. 